Knee-joint or hinge connection.



. Patehfed mar. 25, I902.

a. w. amzauwoon. KNEE JOINT OR HINGE CONNECTION .Applicezmtion filed July 12 1901.\

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- ATTORNEYS aren't Fries...

GEORGE IV. GREENM OOD, Oi CLEVELAND, OlIIO.

KNEE-JOINT OR HlNG E CONNECTlGN.

SPECIFIUATJZGN forming part of Letters Patent No, 696,235, dated March 25,1902.

' Application filed July 12. 1901. Ser al No. 67,969. No model To all 1072 0117, it may concern:

Be it known that I, GEORGE W. GREEN- WOOD, a resident of Cleveland, in the county of Cuyanoga and State of Ohio, have invented certain new and useful Improvements in Knee-Joints or .I-Iingc Connections; and I do hereby declare thet'ollowing to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it pertains to make and use the same.

My-invention relates to improvements in knee-joints or hinge connectionsbetween two parts or members of a machine wherein the said parts or'memb ers'are adapted to be actuated for the purpose of transmitting power.

The primary object of this invention is to provide amaterially-improved construction of kneejoint or hinge connection between saidtwo parts or members of the machine, to render the assemblage of the said parts conyenient, to'render the joint strong, durable,

' and'inexpensive, to provide the jointwith large wearing-surfaces, to avoid the use of a bolt or pin,iwhich is liable to be sheared oil",

to avoid'lost motion, and togenerally maintain the parts properly assembled and in a satisfactorily Working condition.

"With this object in View the invention con sists in certain features of construction and combinations of parts hereinafter described, and pointed out in the claims.

In the accompanying drawings, Figure I is an exterior View of a joint or hinge connection embodying my invention. Fig. II is a section on lineII II, Fig; I, looking in the direction indicatedby the arrow. Fig. III isa section on line III III, Fig. I, looking'in the direction indicated by the arrow. Fig. IV is a section on line IV IV, Fig. I, looking in the direction indicated by the arrow.

Referring to the drawings, a designates a cylinder or case containing a piston, plunger, or slide b, adapted to reciprocate or operate endwise of the cylinder or case a, and 0 represents a pitman, rod, or link employed in the transmission of power from or to the aforesaid reciprocating member b. The members I) and c are therefore. joined together by a knee-joint or hinge connection capable of permitting the part c to move into or assume di-f ferent angular positions relative to the part I), and the improved construction of kneejoint or hinge connection between the parts I) and c or between two parts of any machine constitutes the subject-matter of this applica tion.

The part c terminates at its end. which is connected to the part b in a journal or hearing 6, which is contained within a correspond? ing box 7, formed upon the adjacent end of the part Z). The box 7 has therefore a cylindrical chamber 8, engaged by the journald. The chamber 5 extends to one end of the box,

as at ll, but is preferably closed'at its op-" posite end, as at 9, to reduce to a minimum the liability of dirt, dust, 6110., obtaining ingress between the opposing surfaces of the journal and the surrounding wallof the cham-. her 8, and the said wall altords bearin g for the journal 6 and is slotted laterally, as at 10, to accommodate the location and operation of the part c. The journal 6 extends beyond the remaining or contiguous portion of the .part c longitudinally of the boxfi', and the bushing c is seated against the shoulder 12 and completely surrounds the journal at the. enlarged end of the chamber 8. The bushing e snugly occupies the enlarged end of the chamber 8 and is arranged, preferably, withits outer surface flush with the adjacent end of the box 7. The bushing e is removably se -l cured to the box 7, preferably by two screws f and f, which are arranged diametrically opposite each other at opposite sides, respec tively, of the journal 6 and engage correspondingly-threaded holes formed partially in the bushing and partially in the bushing embracingiwall of the enlarged end of the chamber 8, and the said-screws are screwed in preferably flush with the adjacent end of the box. The bushing e constitutes a member of the box 7 and affords the largest possible bearing for the journal end which is cmbraccd by the said bushing.

'- of the slot is accommodated by the exten- 'sion-of the journal 6 beyond the contiguous .portion of the part erably the said slot 10 is narrower end adjacent to the bushin g-embraced end of In assembling the parts the part c, is of course placed in position before the application of the bushing with the journal Gin proper engagement with the chamber 8, whereupon the bushing e and the screws f are applied, and the slot 10 is open at its end .which is adjacent to the bushing to accomin odato the assemblage of the parts, and prefat its open c into the bushing. By my improved construction of the joint or hinge connection formed between the parts b and ca large area of wearing-surfaces is obtained and the use of a separate bolt or pin is avoided, so that there no bolt or -pin liable to be sheared off during the operation I strength and durability,

;ofthe said parts 1') andc.

fMy improved construction possesses great and the component partsare conveniently assembled and maintained in proper condition and are not liable get out of order, and lost motion is avoided. t'will'be' observedalso that the bushing e not only a'ifordsa desirable bearing for the journal 6, but, being'rigidly secured in place,

' prevents-displacement of the part c endwise of the box 7.

' What I claim is- 1 1, A knee-joint or hinge connection between c'atio'n and operation of two parts or members of a machine comprisinga journal 6 formed on one part and a box formed on the otherpart and havingits chamber engaged by the journaluand having the surrounding wall of its chamber. provided with a lateral slot 10 to accommodate the lobraeing the journal adjacent to the open end the journal-forming part; which slot is open at one end of the said chamber; a bearing-afiording member 0 emof the slot, and means for securing the said bearing-affording member in place, and the aforesaid slot being reduced in width adja centto the bearing-affording member, substantially as and for the purpose set forth.

2. A knee-joint orhinge connection between two parts or members of a machine, comprising a journal 6 formed on one part, and abox formed on the other part and having its chamber engaged by the journal and having the surrounding wall of the said chamber provided with a lateral slot 10 to accommodate the location and operation of the journalforming part, which chamber is enlarged, at one end; abushing e within the said enlarged end of the chamber, aud'screws removably.'

securing the bushing in place and engaging correspondinglytially in the bushing and partially in the bushing-surrounding portion of the aforesaid wall, and the journal extending into and having bearing in the said bushing.

3; A knee-joint or hinge connection between two parts or members of a machine, comprishreaded holes formed par-- ing a journal 6 formed on one part, and a box formed on the other part and havingits chamber engaged by the journal and having the surrounding wall of ,the said chamber provided with a lateral slot 10 to accommodate the location and operation of the journaL' forming part, which chamber is enlarged, at one end; a bushing 6 within the said enlarged end of the chamber, andmeans securing the bushing in place, and the journal extending into and having bearingin'the said bushing,

' and the aforesaid slotbein'g reducedin width adjacent to the bushing so as to enlarge the bushing-embracing portion of the box circumferentially of the bushing, as at 13, substantially as and for the purpose set forth.

Signed by me at Cleveland, Ohio, this 6th day ot-July, 1901. L

GEORGE V. GREEQERVOOD.

\Vitnesses: C. H. Donna A. H. PARRATT. 

